US Bridges

East 18th RD over Tippecanoe River

Fair

Marshall County, Indiana · 00.20 W of Apple RD · Structure no. 5000108

Built
1969
56 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
182 ft
5 main spans
Daily traffic
200
2024 count
Owner
County
County Highway Agency

About this bridge

East 18th RD over Tippecanoe River is a concrete continuous slab carrying East 18th RD over Tippecanoe River in Marshall County, Indiana. It was built in 1969, so it is 56 years old, older than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 200 vehicles a day, roughly 5% of them trucks, projected to reach 300 by 2042. The structure is 182 ft (55.4 m) long and 29 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesEast 18th RD
CrossesTippecanoe River
Location00.20 W of Apple RD
RouteCounty Highway 20
StateIndiana
Coordinates41.21653, -86.06644
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.9 US tons
Inventory rating35.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length182 ft (55.4 m)
Longest span40 ft (12.1 m)
Deck width29 ft (8.9 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2024)
Projected traffic300 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was East 18th RD over Tippecanoe River built?

It was built in 1969, making it 56 years old in 2025.

What condition is East 18th RD over Tippecanoe River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does East 18th RD over Tippecanoe River carry?

About 200 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is East 18th RD over Tippecanoe River?

The structure is 182 ft (55.4 m) long with a longest span of 40 ft (12.1 m) and a deck 29 ft wide.

Who owns East 18th RD over Tippecanoe River?

It is owned by the County Highway Agency.